28798840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{631}}^1$

素因数の和:812

約数の個数: 64

約数和(自身を含む): 74626560

約数和(自身を除く): 45827720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 280, 326, 631, 652, 815, 1141, 1262, 1304, 1630, 2282, 2524, 3155, 3260, 4417, 4564, 5048, 5705, 6310, 6520, 8834, 9128, 11410, 12620, 17668, 22085, 22820, 25240, 35336, 44170, 45640, 88340, 102853, 176680, 205706, 411412, 514265, 719971, 822824, 1028530, 1439942, 2057060, 2879884, 3599855, 4114120, 5759768, 7199710, 14399420, 28798840]

約数ペア:

[(1, 28798840), (2, 14399420), (4, 7199710), (5, 5759768), (7, 4114120), (8, 3599855), (10, 2879884), (14, 2057060), (20, 1439942), (28, 1028530), (35, 822824), (40, 719971), (56, 514265), (70, 411412), (140, 205706), (163, 176680), (280, 102853), (326, 88340), (631, 45640), (652, 44170), (815, 35336), (1141, 25240), (1262, 22820), (1304, 22085), (1630, 17668), (2282, 12620), (2524, 11410), (3155, 9128), (3260, 8834), (4417, 6520), (4564, 6310), (5048, 5705)]